The revelation this week that Ben Carson knows squat about foreign policy was about as shocking as the news that Charlie Sheen is HIV positive. Still, let’s have some fun with the latest Carson farce, because, if nothing else, it’s a welcome comic break from contemplating ISIS.

Let’s call it “Lotagate,” a mini-scandal that ranks high in the annals of ignorance. It should also – but probably won’t – prompt the Republican electorate to strip this guy of his co-frontrunner status. Even at a time when so many GOP voters seem willing to dwell in a post-fact dream world, there surely can be no excuse for this particular spectacle. I’ve covered national politics since 1988, and never saw anything like this before.

“Nobody has been able to sit down with him and have him get one iota of intelligent information about the Middle East,” said Duane R. Clarridge, a top adviser to Mr. Carson on terrorism and national security, told The New York Times, citing the need for weekly conference calls briefing Carson on foreign policy so “we can make him smart.”

Clarridge’s frustration is certainly understandable. Carson, in a Sunday appearance on Fox News, couldn’t name a single country that he’d call on to fight ISIS – but to out the boss as an empty vessel? Wow. And Carson’s top top adviser, Armstrong Williams, was only a tad kinder. Here’s what he said about Carson’s deer-in-headlights moment on Fox News: “He’s been briefed on it so many times. I guess he just froze.”

Team Carson has reacted to Clarridge’s remark by trashing Clarridge. A flak now insists that Clarridge “is clearly not one of Dr. Carson’s top advisers.” Carson says that Clarridge is merely “a person who has come in on a couple of sessions to offer his opinion on what was going on. To call himself my adviser would be a great stretch.” And the team put out this priceless spin: “For the New York Times to take advantage of an elderly gentleman and use him as their foil in this story is an affront to good journalistic practices.”

Why did The Times talk to Clarridge in the first place? Because Team Carson told the paper that Clarridge was worth talking to. The campaign gave the paper Clarridge’s name and phone number.

Before “Lotagate” happened, Armstrong Williams described Clarridge as “a mentor for Dr. Carson.” And earlier this week, in the wake of the Fox News fiasco, the campaign felt that Carson could recoup by speedily devising a plan to fight ISIS. To make the candidate look smart, it began to craft a guest column for The Washington Post. Care to guess who the campaign tapped for major input? Duane Clarridge.

But after “Lotagate” happened, suddenly Clarridge was just an “elderly gentleman” whose implicit senility was being exploited by Duh Liberal Media.

I took a look at Carson’s Post column – “My Plan to Defeat the Islamic State” – and at least he no longer says that the Chinese are in Syria. (His advisors had recently pumped that falsehood into his head, and he had dutifully disgorged it.) I would serve you the details of his plan, but why bother? Would you eat at a restaurant if one of its key chefs had just panned the place on Yelp?

At last glance, Carson still commands roughly one-fourth of the Republican electorate, with disproportionate support from the religious right. Maybe his stock will drop when the voting finally gets serious, but for now, I still have to wonder how it’s possible that the party that has long fancied itself wise on national security can continue to so fulsomely indulge someone who knows nothing.

Here’s the thing: If you had an abscessed tooth, would you trust the extraction to some random guy you’d pull off the street? If a copper pipe bursts in your basement, would you trust the soldering job to someone who has no clue how to wield a propane torch? Of course not. So why would supposedly rational Republicans trust a font of ignorance with our nuclear codes?

Emphasis on supposedly.

Dick Polman is the national political columnist at NewsWorks/WHYY in Philadelphia (newsworks.org/polman) and a “Writer in Residence” at the University of Philadelphia. Email him at dickpolman7@gmail.com.